Eastern Mojave Vegetation Field Notes (Continued)  
 

Tom Schweich  

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Contents
Literature Cited
 When I first read the field notes of Annie Alexander and Louise Kellogg, I was fascinated by the descriptions they wrote about the places they went and the plants and animals they found there. By publishing my field notes on the Internet I hope to follow a little bit in their tradition.

 

   

April, 2017

 

 

 

Other articles: Social Trail (Parfet Estates Drive to Landing Zone) 90000  

Monday, April 3rd

Parfet Estates Drive through Landing Zone.

 

Other articles: Chimney Gulch Trail at curve Parfet Estates Drive at CoG parcel Social Trail (Parfet Estates Drive to Landing Zone) 80000
Full Size ImageAccess to City of Golden parcel on Parfet Estates Drive
Full Size ImageEuphorbiaceae myrsinites “Myrtle Spurge”  

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North Golden from outcrop on Lookout Mountain.
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View from outcrop.
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Chimney Gulch Trail
 

Other articles: Social Trail (Parfet Estates Drive to Landing Zone) along trail
Full Size ImageHabitat of Coll. No. 1568, Carex inops var. heliophila
Full Size ImageColl. No. 1568, Carex inops var. heliophila  

1568 
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Finished vouchers of Coll. No. 1568, Carex inops ssp. heliophila
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Crown of Coll. No. 1568, Carex inops ssp. heliophila sewed to voucher.
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Coll. No. 1568, Carex inops var. heliophylla
Field identification: Carex inops var. heliophila.

Carex inops L.H. Bailey ssp. heliophila (Mack.) Crins. Sun Sedge.

Landing Zone, Jefferson County, Colorado. Lowest slopes of Mount Zion, below Windy Saddle Park, 1.25 km southwest of the GNIS location of Golden. 39.7489N, 105.233W. WGS 1984 Elev. 1792 m. Grassy east-facing slope, most other plants still dormant or just beginning to grow.

 

   

Thursday, April 6th

 

Other articles: CO Hwy 93 city limits

Locations: Cressmans Gulch (lower).
Full Size ImageColorado Highway 93 and North Table Mountain.  

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Trench on east side of hogback.
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Golden from hogback north of town.
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North Table Mountain from an unnamed hogback to the west.
 

 

   

April 8th – “Project Flambeau”

 

Literature Cited:
- Countryman, Clive M., 1969.
- Fox, Douglas, 2017.
- Palmer, Thomas Y., 1969.

Other articles: Mono Lake Basin Flora at Deep Caon  

“In the wrinkled, sage-covered mountains of Nevada near the California border, 30 miles east of Mono Lake, there is a meadow that seems to lie in shadow even on sunny days. Spread across it are hundreds of dark patches, where the soil is mixed with charcoal. These spots lay row upon row, like the ghostly foundations of a dead city. In a sense, that is exactly what they are.

“In 1967, workers with the Forest Service and the Department of Defense stacked 342 piles of juniper and pion logs in this place 20 tons of wood per pile, spaced 25 feet apart. Then, at 8 a.m. on Sept. 29, they set fire to them.

“Project Flambeau comprised some two-dozen experiments like this one, meant to simulate an American suburb under nuclear attack (Fox, 2017)”

 

   

Tuesday, April 11th

Golden, CO to Green River, UT.

 

Other articles: CO-133 n of Bears Gl at Bears Gl s of Bears Gl

Locations: Bears Gulch.
Full Size ImageNorth on Colorado State Highway 133.  

Along Colorado State Highway 133 near Bears Gulch.

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Waterfall at Bears Gulch
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South on Colorado State Highway 133
 

Other articles: Interstate 70 132610

Locations: Green River.
Full Size ImageSunset across the Green River  

Dinner in Green River.

 

 

   

Wednesday, April 12th

 

Other articles: Interstate 70 at The Squeeze

Locations: San Rafael Swell. Spotted Wolf Canyon. The Squeeze.
Full Size ImageEntrance to Spotted Wolf Canyon on Interstate 70  

Crossing the San Rafael Swell.

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Eastern edge of San Rafael Swell.
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Eastern edge of San Rafael Swell.
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Allium seen at The Squeeze Rest Stop.
 

Other articles: Interstate 70 at Black Dragon Cyn

Locations: Black Dragon Wash.
Full Size ImageBlack Dragon Canyon on east slope of San Rafael Swell.  

Black Dragon Canyon Overlook for westbound travelers.

Other articles: Interstate 70 at Eagle Cyn O'look

Locations: Eagle Canyon.
Full Size ImageEagle Canyon from the associated overlook.  

Eagle Canyon Overlook.

Locations: Miller Canyon.
Full Size ImageEmery, Utah, from mesa to the southeast.
Full Size ImageCell phone tower on mesa near Miller Canyon.  

Looking for Frasera albomarginata on the mesa above Miller Canyon.

 

Other articles: Interstate 70 Fremont Indian State Park and Museum

Locations: Fremont Indian State Park.
Full Size ImageView of Five Finger Ridge across US I-70.  

Fremont Indian State Park and Museum

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Petroglyph panel at Fremont Indian State Park.
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Petroglyph panel at Fremont Indian State Park.
 

 

   

Thursday, April 13th

Red Rock Canyon National Conservation Area

 

Other articles: Nevada State Route 159 at o'look

Locations: Red Rock Canyon National Conservation Area. Red Rock Dedication Site.
Full Size ImageView from Red Rock Overlook  

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View from Red Rock Overlook
Red Rock Overlook (Dedication Site).

Other articles: Scenic Loop Drive at visitor ctr

Locations: Red Rock Canyon National Conservation Area.
Full Size ImageView from Visitor Center  

Red Rock Canyon Visitor Center.

Other articles: Scenic Loop Drive at o'look

Locations: Red Rock Canyon National Conservation Area.
Full Size ImageView from High Point Overlook.  

High Point Overlook.

 

Other articles: Rocky Gap Road at Willow Sprs

Locations: Willow Spring.
Full Size ImageHikers above Willow Springs Picnic Area.  

Willow Springs Picnic Area

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Cercis, probably C. occidentalis at Willow Spring.
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Cercis, probably C. occidentalis at Willow Spring.
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Fossiliferous limestone in the wash.
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Petroglyphs at Willow Spring.
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Willow Spring Picnic Area
 

 

   

Sunday, April 16th

 

Other articles: California Highway 127 at Silver Lake spillway

Locations: Avawatz Mountains. Silver Lake.
Full Size ImageLower spillway from Silver Lake, with Avawatz Mountains in distance.  

Field Trip Stop 2017-1-1. Outlet of Lake Mojave and tectonics of the Silurian Valley and Avawatz Mountains.

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Dave Miller leads field discussion of the outlet of Lake Mojave and the tectonics of the Silurian Valley and Avawatz Mountains.
 

Other articles: 4WD Road at pkg
Full Size ImageField Trip Stop 2017-1-2, Folds and restraining and releasing stepovers in the Soda-Avawatz fault zone.
Full Size ImageImbricated alluvial fan gravels.  

Field Trip Stop 2017-1-2, Folds and restraining and releasing stepovers in the Soda-Avawatz fault zone.

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Fan surfaces differentially affected by a minor fault.
 

Other articles: Basin Road at tracks

Locations: Basin.
Full Size ImageCrossing the Union Pacific tracks at Basin.  

Our route was quite circuitous since the railroad crossing at Crucero is now closed.

 

Other articles: Union Pacific Maintenance Road near Crucero Tonopah & Tidewater Crucero

Locations: Crucero.
Full Size ImageUnion Pacific tracks at Crucero, looking toward Kelso.  

Missed the old telegraph road, stopped here, changed flat tires.

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East end of Crucero on the Union Pacific tracks.
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Milling around, wondering what's next?
 

 

Other articles: Crucero Road 34000 at megaphone Tonopah & Tidewater Mesquite

Locations: Mesquite Spring.
Full Size ImageField Trip Stop 2017-1-4, Mesquite Spring.  

Field Trip Stop 2017-1-4, Mesquite Spring.

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Field Trip Stop 2017-1-4, Mesquite Spring.
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The Mojave Megaphone
 

 

Other articles: Crucero Road 66000 Tonopah & Tidewater on Broadwell Lake

Locations: Broadwell Lake.
Full Size ImageField Trip Stop 2017-1-5.  

Field Trip Stop 2017-1-5. Broadwell Lake fissures and views of Broadwell Mesa and Cady Faults.

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Vegetation in Broadwell Lake fissures.
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Field Trip Stop 2017-1-5.
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Tonopah & Tidewater roadbed north on Broadwell Lake
 

 

   

Monday, April 17th

2017 Desert Symposium, Field Trip Day 2.

 

Other articles: Zzyzx Road on shore of Soda Lake

Locations: Soda Lake.
Full Size ImageAnemopsis californica “Yerba Mansa” beside Zzyzx Road.  

Field Trip Stop 2017-2-1. Spring history along Soda Lake.

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Field Trip Stop 2017-2-1
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Driving on Soda Lake not recommended.
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Field Trip Stop 2017-2-1
 

 

Other articles: Power Line Road at Stop 2017-2-2

Locations: Cave Mountain. Mojave Valley.
Full Size ImageHesperocallis undulata “Desert Ajo Lily”  

Field Trip Stop 2017-2-2. Cave Mountain Fault.

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Hesperocallis undulata “Desert Ajo Lily”
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Field Trip Stop 2017-2-2. Cave Mountain Fault.
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Brassica tournefortii “Sahara Mustard”
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Cave Mountain as seen from Field Trip Stop 2017-2-2.
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View toward Mojave Valley from Field Trip Stop 2017-2-2.
 

 

Other articles: Dunn Road at Stop 2017-2-3
Full Size ImageField Trip Stop 2017-2-3. Splay of the Cave Mountain fault.  

Field Trip Stop 2017-2-3. Splay of the Cave Mountain fault.

 

Other articles: Dunn Road at dacite dome
Full Size ImageDacite dome of unknown age.  

Small part of a dacite dome of unknown age. It may be part of a larger dome to the east that lies on metamorphic rocks (Walker et al., 1990).

 

Other articles: BLM 8344 at Stop 2017-2-5 near Dunn Road Dunn Road at BLM 8344
Full Size ImageRoute to Field Trip Stop 2017-2-5.
Full Size ImageField Trip Stop 2017-2-5. Pliocene sediment derived from sources to the west.  

Field Trip Stop 2017-2-5. Pliocene sediment derived from sources to the west.

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Field Trip Stop 2017-2-5. Pliocene sediment derived from sources to the west.
 

 

Other articles: Power Line Road #2 (Middle) at Stop 2017-2-7
Full Size ImageField Trip Stop 2017-2-7. Goldstone gravel and overview of Miocene strata of Alvord Mountain.
Full Size ImageLooking southeast across Mojave Valley to the Cady Mountains.  

Desert Symposium Field Trip Stop 2017-2-7.

Goldstone gravel and overview of Miocene strata of Alvord Mountain.

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Southwest view along the power lines.
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Field Trip Stop 2017-2-7. Goldstone gravel and overview of Miocene strata of Alvord Mountain.
 

Other articles: Daggett-Yermo Road at Mojave Rd
Full Size ImageWagon at Daggett Historical Museum.  

Daggett Historical Museum.

 

 

   

Tuesday, April 18th

Shadow Valley to Mesquite Mountains.

 

Other articles: Kingston Wash Road 25400
Full Size ImageThe gate at the wilderness boundary.
Full Size ImageJoshua tree and creosote bush in Shadow Valley.  

On Kingston Wash Road, at the gate to the wilderness. Location of collections 1569-1574.

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Kingston Wash Road in Shadow Valley
 
  1569  Field identification: Calycoseris wrightii

Rafinesquia californica Nutt. California Chicory.

Shadow Valley, San Bernardino County, California. On the now closed road to Kingston Wash, 12.6 miles north on Cima Road, Kingston Road, and then Excelsior Mine Road from the intersection of US Interstate 15 and Cima Road, then 0.4 miles west to the gate at the Kingston Range Wilderness. 35.6094N, 115.7382W. WGS 1984 Elev. 953 m. Location of my collections 1569 to 1578.

Coll. No. 1569, 18 April 2017, characters observed while keying: Annual herb, to 35 cm.; Stem, glabrous, branching various, from base to distal ½; Leaves, basal and cauline, alternate, length 7.5 cm. × 2.5 cm. wide, much reduced above, lanceolate, deeply pinnately divided; Inflorescence, heads enclosed by an involucre, overtopping the leaves; Involucre, near cylindric, 22 mm.; Phyllaries, unequal, in 3+ graduated series, 8-22 mm., margins flat, chartaceous, centers green; Receptacle, epaleate; Flowers, rays only, surpassing phyllaries by 5-10 mm., Pappus, many well-developed plumose bristles, ±equal; Fruit, 6 mm., light brown, beak 4 mm.

  1570  Field identification: Larrea tridentata

Larrea tridentata (DC) Cov. Creosote Bush.

Shadow Valley, San Bernardino County, California. On the now closed road to Kingston Wash, 12.6 miles north on Cima Road, Kingston Road, and then Excelsior Mine Road from the intersection of US Interstate 15 and Cima Road, then 0.4 miles west to the gate at the Kingston Range Wilderness. 35.6094N, 115.7383W. WGS 1984 Elev. 961 m. Location of my collections 1569 to 1578.

  1570.1  Field identification: Indian Rice Grass.

Stipa hymenoides Roem. & Schult. Indian Rice Grass.

Shadow Valley, San Bernardino County, California. On the now closed road to Kingston Wash, 12.6 miles north on Cima Road, Kingston Road, and then Excelsior Mine Road from the intersection of US Interstate 15 and Cima Road, then 0.4 miles west to the gate at the Kingston Range Wilderness. 35.6094N, 115.7383E. Elev. 961 m.

Other articles: Excelsior Mine Road at dirt road
Full Size ImageColl. No. 1570.2, Bromus madritensis ssp. rubens  

1570.2  Field identification: Red Brome.

Bromus madritensis L. ssp. rubens (L.) Husn. Red Brome.

Shadow Valley, San Bernardino County, California. On the now closed road to Kingston Wash, 12.6 miles north on Cima Road, Kingston Road, and then Excelsior Mine Road from the intersection of US Interstate 15 and Cima Road, then 0.4 miles west to the gate at the Kingston Range Wilderness. 35.6094N, 115.7383E. WGS 1984 Elev. 961 m.

Coll. No. 1570.2, 18 April 2017, charcters observed: Annual grass, to 20 cm.; Inflorescence, 50 mm.; Spikelets, 40 mm., similar; Compression, lateral (looks strongly lateral to me, but this will send you down the wrong path); Glumes, lower, 7 mm., slightly keeled, few hairs, veins, 1, upper, 10 mm., rounded, veins, 3; Florets, 6+; Lemma, 13 mm. × 2.3 mm. wide, veins, 3, tip, bifid, awns, 1, 11 mm., attached to back; Palea, 9 mm., margin sparsely ciliate; Grain, 9 mm. × 1.3 mm. wide, flattened.

Literature Cited:
- Baldwin, Bruce G., Donald W. Kyhos, Scott N. Martins, Frank C. Vasek, and Bridget L. Wessa, 1996.

Other articles: Excelsior Mine Road at dirt road
Full Size ImageMix of staminate and pistillate flowers in inflorescence of Ambrosia dumosa  

1571 
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Overview of Coll. No. 1571, Ambrosia dumosa
Field identification: Ambrosia dumosa

Ambrosia dumosa (A. Gray) W. W. Payne. White Bur-Sage, Burroweed.

Shadow Valley, San Bernardino County, California. On the now closed road to Kingston Wash, 12.6 miles north on Cima Road, Kingston Road, and then Excelsior Mine Road from the intersection of US Interstate 15 and Cima Road, then 0.4 miles west to the gate at the Kingston Range Wilderness. 35.6093N, 115.7381W. WGS 1984 Elev. 959 m. Location of my collections 1569 to 1578.

Coll. No. 1571, 18 April 2017, characters observed: Perennial shrub, to 40 cm.; Stem, woody, densely short strigose when young; Leaves, petiole 10 mm., blade 16 mm × 13 mm. wide, pinnately lobed, short strigose; Phyllaries (staminate flowers), fused at base, in 1 series, #7, eglandular, tip acute; Flowers, 2 kinds in different heads, staminate flowers, #15, pistilate flowers, #2; Pappus, 0; Style, 2-branched, fused(?); Fruit, bur, 6 mm. × 6 mm. wide, ±spheric, spines, #15, 2 mm.

Other articles: Excelsior Mine Road at dirt road
Full Size ImageColl. No. 1572, Schismus barbatus  

1572  Field identification: grass, revised 4/30/2017: Schismus barbatus.

Schismus barbatus (L.) Thell. Mediterranean Grass.

Shadow Valley, San Bernardino County, California. On the now closed road to Kingston Wash, 12.6 miles north on Cima Road, Kingston Road, and then Excelsior Mine Road from the intersection of US Interstate 15 and Cima Road, then 0.4 miles west to the gate at the Kingston Range Wilderness. 35.6093N, 115.7381W. WGS 1984 Elev. 958 m. Location of my collections 1569 to 1574.

Coll. No. 1572, 18 April 2017, characters observed: Annual grass, 12-15 cm.; Ligule, finely hairy inside and out; Inflorescence, exceeding leaves, panicle; Spikelets, many, 1 per node; Glumes, 2, 5 mm., lower slightly > upper, veins, 5, keeled, scabrous; Florets, 2+ florets per spikelet; Lemma, lower, 1.7-1.8 mm., teeth widely triangular; Anther, small, 0.2-0.3 mm.; Achene, 0.8 mm., translucent.

Other articles: Excelsior Mine Road at dirt road
Full Size ImageColl. No. 1573, Ephedra nevadensis  

1573  Field identification: Ephedra nevadensis

Ephedra nevadensis S. Watson. Nevada Ephedra.

Shadow Valley, San Bernardino County, California. On the now closed road to Kingston Wash, 12.6 miles north on Cima Road, Kingston Road, and then Excelsior Mine Road from the intersection of US Interstate 15 and Cima Road, then 0.4 miles west to the gate at the Kingston Range Wilderness. 35.6094N, 115.7382W. WGS 1984 Elev. 959 m. Staminate plant, no pistillate plants in immediate area. Location of my collections 1569 to 1574.

Literature Cited:
- Lamson-Scribner, F., 1898.

Other articles: Excelsior Mine Road at dirt road
Full Size ImageExample inflorescences of Coll. No. 1574, Hilaria rigida  

1574 
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Coll. No. 1574, Hilaria rigida
Field identification: Hilaria rigida.

Hilaria rigida (Thurb.) Scribn. Big Galleta.

Shadow Valley, San Bernardino County, California. On the now closed road to Kingston Wash, 12.6 miles north on Cima Road, Kingston Road, and then Excelsior Mine Road from the intersection of US Interstate 15 and Cima Road, then 0.4 miles west to the gate at the Kingston Range Wilderness. 35.6095N, 115.7383W. WGS 1984 Elev. 959 m. Location of my collections 1569 to 1574.

Coll. No. 1574, 18 April 2017, characters observed: Perennial grass, 50-60 cm., rhizomatous; Roots, stout; Stem, herbaceous; Internodes, solid, fluted, sparse soft long crinkly hairs (sparsely tomentose?); Leaves, blade and sheath differentiated, soft; Sheath, open; Ligule, membraneous, 1 mm., ciliate fringe (?) or laciniate (?); Inflorescence, 1 per culm, > leaves, 75-80 mm., spike, cylindric; Spikelets arranged in wedge-shaped clusters of 1 central spikelet and 2 lateral spikelets, on alternate sides of the rachis; Rachis, short hairy, not extended beyond upper spikelet; Spikelets, many, subtended by long silky hairs but < spikelet, similar, 3 per node, sessile, 8 mm.; Central spikelet, 1 bisexual floret; Lateral spikelet, 2 staminate florets; Glumes, present, rounded, veins 3-9, 6 mm., ± equal, awns, many (7 obs.); Lemma, 6 mm, ±glumes, membraneous, veins, 3, prominent, glabrous, parallel, tip, truncate, awns, 2 mm., straight, attached end; Anthers, 3.8 mm., lt. green with purple; Stigma, #2.

Other articles: Kingston Road along road
Full Size ImageColl. No. 1575, Yucca schidigera  

1575  Field identification: Yucca schidigera.

Yucca schidigera K. E. Ortgies. Mohave Yucca.

Shadow Valley, San Bernardino County, California. Along Kingston Road, 13.4 miles north of US Interstate 15 on Kingston Road, and 0.9 miles northeast of the intersection of Kingston Road and Excelsior Mine Road. 35.6216N, 115.7266W. WGS 1984 Elev. 981 m. Also collected here, Coll. No. 1576, Ambrosia salsola.

Literature Cited:
- Baldwin, Bruce G., Donald W. Kyhos, Scott N. Martins, Frank C. Vasek, and Bridget L. Wessa, 1996.

Other articles: Field Notes 20 Apr 2004  

1576  Field identification: Hymenoclea salsola.

Ambrosia salsola (A. Gray) Strother & B. G. Baldwin. Cheesebush.

Shadow Valley, San Bernardino County, California. Along Kingston Road, 13.4 miles north of US Interstate 15 on Kingston Road, and 0.9 miles northeast of the intersection of Kingston Road and Excelsior Mine Road. 35.6217N, 115.7269W. WGS 1984 Elev. 980 m. Also collected here, Coll. No. 1575, Yucca schidigera salsola.

Species Lists: Salvia dorrii  

1577  Field identification: Salvia dorrii.

Salvia dorrii (Kellogg) Abrams var. pilosa (A. Gray) J. L. Strachan & Rev. Purple Sage.

Shadow Valley, San Bernardino County, California. Along Kingston Road, 17.2 miles north of US Interstate 15 on Kingston Road, and 4.6 miles northeast of the intersection of Kingston Road and Excelsior Mine Road. 35.6736N, 115.7081W. WGS 1984 Elev. 1123 m. Collected with Coll. No. 1578, Sphaeralcea ambigua.

Other articles: Kingston Road s. of Winters Pass
Full Size ImageColl. No. 1578, Sphaeralcea ambigua  

1578  Field identification: Sphaeralcea ambigua.

Sphaeralcea ambigua A. Gray var. ambigua. Apricot Mallow.

Shadow Valley, San Bernardino County, California. Along Kingston Road, 17.2 miles north of US Interstate 15 on Kingston Road, and 4.6 miles northeast of the intersection of Kingston Road and Excelsior Mine Road. 35.6738N, 115.7079W. WGS 1984 Elev. 1127 m. Collected with Coll. No. 1577, Salvia dorrii.

Coll. No. 1578, 18 April 2017, characters observed: Perennial herb, to 50 cm.; Hairs, stellate; Bractlets, #2-3; Calyx, 10 mm., fused at base; Flower, 17 mm. × 28 mm wide, showy, orange, fading pink; Anthers, near top of filament tube, not organized in concentric series, i.e., not Sidalcea Stigmas, head-like; Fruit, separate segments; Seeds, seeds per segment unknown.

Fruit needed to key to genus from family, not available in this collection.

Also with stellate hairs: some Brassicaceae, and Elaeagnus angustifolia “Russian Olive.”

  1579  Field identification: unknown, white flower.

Lepidium fremontii S. Watson. Desert Pepperweed.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7087N, 115.716W. WGS 1984 Elev. 1162 m. Location of my collections Coll. No. 1579 to 1590.

  1580  Field identification: little yellow composite.

Eriophyllum wallacei (A. Gray) A. Gray. Woolly Easter Bonnets.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7088N, 115.716W. WGS 1984 Elev. 1157 m. Location of my collections Coll. No. 1579 to 1590.

Other articles: Kingston Road at cherry stem
Full Size ImageColl. No. 1581, Ericameria linearifolia  

1581  Field identification: Ericameria sp.

Ericameria linearifolia (DC.) Urb. & J. Wussow. Narrowleaf Goldenbush.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7087N, 115.716W. WGS 1984 Elev. 1155 m. Location of my collections Coll. No. 1579 to 1590.

Coll. No. 1581, 18 April 2017, characters observed: Low-growing perennial subshrub, to 15 cm., woody at base; Twigs, green-striate, glandular-punctate, becoming white-scaly with age; Leaves, alternate, subsessile, 20 mm. × 2 mm. wide, margins rolled, glandular punctate, few white hairs, becoming white-scaly in age; Inflorescence, heads borne singly; Involucre, 10 mm. × 15 mm wide; Phyllaries, 2+ series, graduated, 6-10 mm. × 1.5-1.8 mm wide, base thick, center green, mid-vein prominent, short-stalked glandular, margin variously chartaceous entire to irregularly small-toothed; Receptacle, epaleate; Pappus, 1 series of bristles, 6 mm.; Rays, fertile, #6-8, tube 5 mm. + blade 12 mm. × 3.6 mm. wide, yellow; Disc flowers, #18-20, yellow; Style, stigma 0.7 mm., appendage 1.0 mm.; Cypsela, 4 mm., hairy. The phyllaries of this collection vary from the Jepson (2012) key and description by virtue of being graduated in size and much variation in the phyllary margins. I don't see any reason to think this might be a hybrid with E. cooperi.

Other articles: Kingston Road at cherry stem
Full Size ImageColl. No. 1582, Eremogone macradenia var. macradenia  

1582  Field identification: Arenaria sp.

Eremogone macradenia (S. Watson) Ikonn. var. macradenia. Desert Sandwort.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7087N, 115.7161W. WGS 1984 Elev. 1163 m. Location of my collections Coll. No. 1579 to 1590.

Coll. No. 1582, 18 April 2017, characters observed: Perennial herb, to 22 cm.; Leaves, opposite, ascending, 12 mm. × 1 mm. wide, widest at base, tapered throughout length, tip sharp-pointed; Inflorescence, open cyme; Sepals, acute (barely acuminate), 6 mm. × 2 mm. wide. Stem and leaves short relative to typical descriptions, but not likely to be E. kingii var. glabrescens.

Other articles: Kingston Road at cherry stem
Full Size ImageColl. No. 1583, Xylorhiza tortifolia  

1583  Field identification: Xylorhiza tortifolia

Xylorhiza tortifolia (Torr. & A. Gray) Greene var. tortifolia. Mojave Woody Aster.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7086N, 115.7161W. WGS 1984 Elev. 1170 m. Location of my collections Coll. No. 1579 to 1590.

Other articles: Kingston Road at cherry stem
Full Size ImageColl. No. 1584, Chylismia claviformis  

1584  Field identification: Camissonia sp.

Chylismia claviformis (Torr. & Frm.) A. A. Heller. Browneyes.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7086N, 115.7163W. WGS 1984 Elev. 1160 m. Location of my collections Coll. No. 1579 to 1590. Very similar to my Coll. No. 447 (UCR241432) which has been determined Chylismia claviformis brevipes.

Other articles: Kingston Road at cherry stem
Full Size ImageColl. No. 1585, Salazaria mexicana  

1585  Field identification: Salazaria mexicana

Salazaria mexicana Torrey. Mexican Bladder Sage.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7087N, 115.7162W. WGS 1984 Elev. 1157 m. Location of my collections Coll. No. 1579 to 1590.

Other articles: Kingston Road at cherry stem
Full Size ImageLeaf of Coll. No. 1586, Phacelia vallis-mortae
Full Size ImageInflorescence of Coll. No. 1586, Phacelia vallis-mortae  

1586  Field identification: Phacelia sp.

Phacelia vallis-mortae J. W. Voss. Death Valley Phacelia.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7087N, 115.7159W. WGS 1984 Elev. 1162 m. Location of my collections Coll. No. 1579 to 1590.

Other articles: Kingston Road at cherry stem
Full Size ImageInflorescence of Coll. No. 1587, Pholistoma membranaceum  

1587  Field identification: Other stuff, maybe a Galium sp.

Pholistoma membranaceum (Benth.) Constance. White Fiestaflower.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7087N, 115.7159W. WGS 1984 Elev. 1162 m. Location of my collections Coll. No. 1579 to 1590.

Coll. No. 1587, 18 April 2017, characters observed: Annual, to 40 cm., sparsely prickly throughout; Stem, weak, tangled (reminiscent of a Galium); Leaf, alternate, petiole winged, 30 mm. × 30 mm. wide, tip rounded, most with 2 pinnate lobes ±= tip, some with 2nd pair of pinnate lobes; Inflorescence, open cyme; Calyx, lobes, #5, 1.5 mm. × 1 mm. wide; Corolla, petals #5, united at base 1.5 mm. + lobes 1.5 mm., white; Stamens, #5; Style, #1, 2-lobed distally; Fruit, 3 mm. × 3 mm. wide, sparsely prickly.

Other articles: Kingston Road at cherry stem
Full Size ImageInflorescence of Coll. No. 1588, Cryptantha utahensis
Full Size ImageColl. No. 1588, Cryptantha utahensis  

1588  Field identification: Plagiobothrys sp.

Cryptantha utahensis (A. Gray) Greene. Fragrant Forget-Me-Not.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7089N, 115.716W. WGS 1984 Elev. 1160 m. Location of my collections Coll. No. 1579 to 1590.

Coll. No. 1588, 18 April 2017, characters observed: Annual, 18-25 cm., taller than wide, pustulate appressed hairy throughout; Leaves, cauline, alternate, sessile, 20 mm. × 3 mm. wide, margin entire; Inflorescence, not bracteate; Pedicel, 0 mm.; Calyx, rounded at base, 2.7 mm. × 1.7 mm. wide, 3 mm. in fruit, hairs straight (not hooked) throughout; Corolla, limb 2.6 mm., white; Nutlets, generally #1, ventral groove central, margin sharp but not flattened or wing-like, papillate with few small spines. Keyed with Simpson & Hasenstab (2009).

Other articles: Kingston Road at cherry stem
Full Size ImageColl. No. 1588.5, Cryptantha or Plagiobothrys  

1588.5  Field identification: Boraginaceae

Undetermined, Cryptantha or Plagiobothrys sp. Borage Family.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7089N, 115.716W. WGS 1984 Elev. 1160 m. Location of my collections Coll. No. 1579 to 1590.

Coll. No. 1588.5, 18 April 2017, characters observed: Annual, to 20 cm.; Stem, decumbent to ascending, stiff white hairy; Leaves, cauline, alternate, 75 mm. × 17 mm. wide, reduced above, elliptical, entire, pustular white hairy; Corolla, tubular, 9 mm. × 5.5 mm. wide, yellow; Ovary, deep-lobed, style base hidden within lobes; Nutlets, ±erect, but otherwise immature and characters indistinct.

Other articles: Kingston Road at cherry stem
Full Size ImageColl. No. 1589, Bromus madritensis ssp. rubens  

1589  Field identification: Red brome.

Bromus madritensis L. ssp. rubens (L.) Husn. Red Brome.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7087N, 115.7161W. WGS 1984 Elev. 1163 m. Location of my collections Coll. No. 1579 to 1590.

Coll. No. 1589, 18 April 2017, characters observed: Annual grass, to 25 cm., soft hairy throughout; Sheath (... looks open to me ...) Ligule, membraneous, 4 mm., laciniate; Inflorescence, panicle; Compression, lateral; Spikelets, 1 per node, 27 mm., axis mostly glabrous; Glumes, lower, 7 mm., upper, 9 mm., veins 5, keeled (IMHO); Florets, #4-6; Lemma, 13 mm., veins 3, tip bifid, awn, #1, 9 mm., attached to back; Palea, 9 mm., margin ciliate; Grain, 8 mm., flattened, brown.

  1590  Field identification: Mentzelia, sprawling, weak stem.

Mentzelia cf. M. nitens Greene. Shining Blazing Star.

Mesquite Mountains, San Bernardino County, California. 19.6 miles north of US Interstate 15 on Kingston Road, then 1.1 miles west on an unnamed cherry stem road into the North Mesquite Mountains Wilderness (road is 1.3 miles north of Wilson Pass). 35.7088N, 115.716W. WGS 1984 Elev. 1160 m. Sprawling, weak stem. Location of my collections Coll. No. 1579 to 1590.

Coll. No. 1590, 18 April 2017, characters observed: Annual, to 40 cm.; Stem, weak, sprawling; Leaves, 95 mm. × 37 mm. wide, lanceolate, pinnately lobed below, reduced, entire above; Bracts, green, entire; Sepals, 5 mm. × 1.5 mm., wide, green fading yellow; Petals, 8.5-9.0 mm., obovate, yellow; Style, 5 mm.; Fruit, 25-29 mm. × 1.5-2.5 mm., obconic, immature; Seed, immature. Petals are larger than expected for M. albiaculis. Sepals, style small. Bract too wide for M. jonesii. Also considered and rejected: M. obscura, M. oreophila, and M. polita. Otherwise seed immature and unavailable for keying.

Other articles: Kingston Road 34000

Locations: Mesquite Lake.
Full Size ImageDust blown off the surface of Mesquite Lake.  

Very windy today. Dust being blown off the surface of Mesquite Lake.

 

   

Wednesday, April 19th

Las Vegas, Nevada to Monument Valley, Arizona.

Other articles: US Highway Alternate 89 at hiway pullout
Full Size ImageView of Shinarump Cliffs from US Highway 89A
Full Size ImageView of Shinarump Cliffs and Muggins Flat from US Highway 89A  

Crowbar Point above Johnson Run.

 

Other articles: US Highway Alternate 89 at scenic view

Locations: House Rock. House Rock Valley. Vermilion Cliffs.
Full Size ImageVermilion Cliffs and House Rock Valley.  

House Rock Valley Scenic View.

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House Rock and ranch.
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Coyote Valley between Buckskin Mountain on the left (west) and the Paria Plateau on the right (east).
 

Other articles: US Highway Alternate 89 at House Rock
Full Size ImageCalochortus flexuosus at House Rock  

House Rock. No sign of any rock that looks like a house, or could provide shelter.

We did find many of this pretty Calochortus, probably C. flexuosus along the road.

Other articles: US Highway Alternate 89 at Buffalo Rch Rd
Full Size ImageInterpretive panel at Buffalo Ranch Road.  

Wildlife Kiosk Interpretive Site.

 

Other articles: US Highway Alternate 89 near Marble Canyon

Locations: Vermilion Cliffs.
Full Size ImageVermilion Cliffs beside US Highway 89A (Smart Phone).  

Full Size Image
Vermilion Cliffs beside US Highway 89A (Digital SLR).
 

 

Other articles: US Highway Alternate 89 Navajo Bridge

Locations: Navajo Bridge.
Full Size ImageVisitor Center for Navajo Bridge.  

Navajo Bridge

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The old bridge (now pedestrian access only) at Navajo Bridge.
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Colorado River upstream of the Navajo Bridge.
Full Size Image
Male of condor pair incubates egg while mate is out hunting.
 

Other articles: U. S. Hwy 89 at scenic view
Full Size ImageMarble Canyon and Vermilion Cliffs.
Full Size ImageBitter Springs from the scenic viewpoint.  

Scenic View of Marble Canyon and Vermilion Cliffs.

 

 

   

Thursday, April 20th

 

Other articles: US Highway 163 in Monument Valley

Locations: Monument Valley.
Full Size ImageJohn Ford Point.  

Tour of Monument Valley.

Full Size Image
The View Hotel at Monument Valley.
Full Size Image
Blackbrush (Coleogyne ramosissima) in bloom at Monument Valley.
Full Size Image
Egg Arch in Monument Valley
Full Size Image
“Diablo,” the Navajo horse.
Full Size Image
East and West Mitten, and Merrick Butte; the view from our hotel room.
 

Other articles: US Highway 163 at the rock edge of town

Locations: Mexican Hat Rock.
Full Size ImageMexican Hat Rock, from the edge of town.  

Mexican Hat Rock.

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Mexican Hat Rock, just north of the town of Mexican Hat.
 

Other articles: Utah Highway 261 near top about 2/3 near US Hwy 163

Locations: Moki Dugway. Valley of the Gods.
Full Size ImageCedar Mesa above Valley of the Gods, Moki Dugway circled.  

Ascent and descent of the Moki Dugway.

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Valley of the Gods from Cedar Mesa at the top of the Moki Dugway
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Valley of the Gods from the Moki Dugway.
Full Size Image
About 2/3 of the way to the top.
 

Other articles: US Highway 163 at San Juan R

Locations: San Juan River.
Full Size ImageSan Juan River in Mexican Hat.  

 

 

   

Friday, April 21st

 

Other articles: Colorado State Highway 184 Anasazi Heritage Center

Locations: Mesa Verde. Sleeping Ute Mountain.
Full Size ImageAnasazi pueblo.  

Anasazi Heritage Center.

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Anasazi pueblo.
Full Size Image
Mesa Verde from Anasazi Heritage Center.
Full Size Image
Sleeping Ute Mountain from the Anasazi Heritage Center.
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San Juan Mountains from Anasazi Heritage Center.
 

Other articles: US Highway 160 Pagosa Springs

Locations: Pagosa Springs.  

Spent this night in Pagosa Springs.

 

   

Saturday, April 22nd

 
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Date and time this article was prepared: 3/17/2019 7:56:34 AM